Cellular drying apparatus.



A.Bi1'TTNBR. CELLULAR DRYING APPARATUS.

7 APPLICATION FILED Mus, 1912. 1,078,125.

Patented Nov. 11, 1913.

2 8HBETS-SHEET 1.

A. BUTTNER.

CELLULAR DRYING APPARATUS...

APPLICATION FILED MAY 9, 191.2.

Patented Nov. 11, 1913.

2 SHEETS-SHEET 2.

AUGUST B'U'TTNER, OF UERDINGEN, GERMANY.

CELLULAR DRYING APPARATUS.

Specification of Letters Patent.

Patented Nov. 1 1, 1913.

Application filed May 9, 1912. Serial No. 896,230.

'0 all whom it may concern:

Be it known that I,.AUuUs'r BtJ'rrNan, a

sub'ect of the Kin of Prussia residim at B 5 b Uerdingen, Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in Cellular Drying vApparatus, of whidh the following is a specification.

in drying cylinders in which the material to be dried is moved in the'same direction as the air current, the movement of the material is princi 'iall effected by the air current and only partially by the inclined position of the cylinder. The lighter the material the greater is the action of the air current so that the speed of the material gradually increases toward the outlet of the cylinder as the material gets gradually lighter during its passage through the ciylinder in conse- (pie-nee ot itsbeingdrainec 'lhis'reduction of weight being very considerable for certain materials, the weight of the material at the outlet is often only -3 of the weight at the inlet, the air current acts at the outlet end of the cylinder much stronger upon the material than at the inlet end whereby the inconvenience is caused that the matcrialto be dried passes tooquickly through the second half of the cylinder. The efficiency of the machine is thus unfavorably influenced. This inconvenienceis overcomeaccording to this invention by providing in the cylinder resistances which radually increase'in number and in capacity toward the end of the cylinder. I

In the accompanying drawings thedrying machine is shown by way of example.

Figure 1 represents a cellular drying cylinder which is divided into three compartments. Figs. 2, 3 'andj4 are cross sections of Fig. 1 on lines A--A, B'B' and C--C respectively. Fig. 5 shows in front elevation the upper half of the compartment 1 of a cylinder with square cells. Figs. 6 and 7 show the same cells as Fig.5 for the compartments 2 and 3. Fig. 8 shows in front elevation the upper halfof the compartment 1 of the cylinder with segment shaped cells. Figs. 9 and 10 show the'same cells as Fig. 8

for the compartments 2 and 3. Figs. 11, 12,

13 and 14 show in front elevation the-upper half of the cylinder with cells of modified construction. Fig. 15 is a developed plan view of part of Flg. 9. Fig. 16 shows in plan view one of the cells of Fig. 11. Fig. 17 is a developed plan view of Fig. 18. Fig. 18 shows in plan view a cell of modified construction.

According to the invention the cylinder of the drying machine is divided into three compartments 1, 2, 3 which freely communicate the one with the other. The first compartment 1 is divided into a certain number of. cells 6 by means of partitions which accordlng to Fig. 2 form hexagonal cells. In

compartment 2 the cells (3 have three cross part1t10ns7. In compartment 3 six partitions 7 are provided.

According to Fig. 5 the cells (3 can be of square cross section. The cells 6 for the compartment 2 are subdivided by a horizontal partition 7 and for the compartment 3 they are subdivided by a horizontal and by a vertical partition 7.

According to Figs. 8, 9 and 10 the cells asegment shaped with one additional radial-)artition for the compartment 2 and with a radial and a conccnt-rical partition for the compartment 3.

The cells according to. Figs. 11, 12, 13 and 14 are arranged so that either the vertical walls (Fig. 11) or the horizontal walls (Fig. 12) are interrupted alternatingly at the one or at the other end.

According'to Figs. 13 and 14 the ends of the horizontal or vertical partitions respectively of the cells are bent at right angles. The length ofthe compartments 1, 2, 3 depends on the kind of material to be dried.

. The device operates as follows :The material to be driedwhich is fed to the drying cylinder 1 at the end 11 of the same is moved in the. well known manner through the drying cylinder by the air current which enters the drying cylinder at the same end 11 as the material. The speed of the material is greatest in the first compartment near the cylinder inlet and it is impeded in compartment 1 by the additional partitions of the cells. The speed is further reduced in the third or end compartment by further addi-. tio-nal partitions and the material dried gets 'out at the open end 5 of the drying cylinder.

A cellular drying cylinder in which the current of heated air moves in the same direction asthe material to be dried, comprising in combination with the cylinder, continudus cells of any convenient cross section, In witness whereof I have hereunto set ahcertalin xunlilber 037' aldditionai pltrtitions in my hand in the presence of two witnesses.

tecelsotemide artoteclinder and further additional partitions in t 1e cells AUGUST BUTTNER' 6 of the end part of the cylinder, substantially Witnesses:

as described and shown and for the purpose DR MijNsTER,

set forth. Loms VANDORY. 

